Added try/catch around code that attempts to load the exported note in a
Added try/catch around code that attempts to load the exported note in a

       * Tomboy/Plugins/ExportToHTML.cs: Added try/catch around code that
        attempts to load the exported note in a web browser.  If opening a
        web browser fails, a dialog will alert the user that the note was exported
        successfully.  Also, the export preferences are not saved unless the
        note is exported successfully.

oluc/tomboy,MatteoNardi/Tomboy,MatteoNardi/Tomboy,MatteoNardi/Tomboy,rotty3000/tomboy,rmayr/privatenotes-tomboyaddin,rotty3000/tomboy,MatteoNardi/Tomboy,tomboy-notes/tomboy,rotty3000/tomboy,oluc/tomboy,tomboy-notes/tomboy,oluc/tomboy,tomboy-notes/tomboy,MatteoNardi/Tomboy,grepory/tomboy,rotty3000/tomboy,grepory/tomboy,rotty3000/tomboy,grepory/tomboy,rmayr/privatenotes-tomboyaddin,rmayr/privatenotes-tomboyaddin,MatteoNardi/Tomboy,rmayr/privatenotes-tomboyaddin,grepory/tomboy,tomboy-notes/tomboy,grepory/tomboy,rmayr/privatenotes-tomboyaddin,oluc/tomboy,tomboy-notes/tomboy,oluc/tomboy,oluc/tomboy